Barrel roller bearing is used in work and bearing heavy loads. Barrel roller bearing is a modern type with a special design of roller bearings that has very high capabilities and eliminates many of the weaknesses that existed in the structure of some other types of roller bearings such as cylindrical roller bearings. Although the load on the barrel roller bearing is slightly lower than on cylindrical roller bearings, the sloping edges of the balls create conditions for a higher degree of freedom and significantly less friction in the spherical roller bearing structure than the cylindrical roller bearing. Provides. It can be said that the roller bearing is a self-adjusting barrel type, which causes the shaft angle to be out of alignment with its housing (bearing).